Cost of living in Oporto (Portugal) is 35% more expensive than in Aligarh (India)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 775 prices entered by 86 different people.
For example, you would need at least ₨66,008 (€805) in Oporto to maintain the same standard of living that you can have with ₨49,000 in Aligarh.